1 #include "occ_presence.hpp"
2
3 #include "occ_manager.hpp"
4
5 #include <errno.h>
6 #include <fcntl.h>
7 #include <sys/ioctl.h>
8 #include <unistd.h>
9
10 #include <org/open_power/OCC/Device/error.hpp>
11 #include <phosphor-logging/elog-errors.hpp>
12 #include <phosphor-logging/elog.hpp>
13 #include <phosphor-logging/lg2.hpp>
14 #include <xyz/openbmc_project/Common/error.hpp>
15
16 namespace open_power
17 {
18 namespace occ
19 {
20
21 // Reads the occs_present file and analyzes the data
analyzeEvent()22 void Presence::analyzeEvent()
23 {
24 using namespace phosphor::logging;
25 using namespace sdbusplus::org::open_power::OCC::Device::Error;
26
27 // Get the number of bytes to read
28 int len = -1;
29 auto r = ioctl(fd, FIONREAD, &len);
30 if (r < 0)
31 {
32 elog<ConfigFailure>(
33 phosphor::logging::org::open_power::OCC::Device::ConfigFailure::
34 CALLOUT_ERRNO(errno),
35 phosphor::logging::org::open_power::OCC::Device::ConfigFailure::
36 CALLOUT_DEVICE_PATH(file.c_str()));
37 }
38
39 auto data = readFile(len);
40 if (data.empty())
41 {
42 return;
43 }
44
45 // Let stoi determine the base
46 auto occsPresent = std::stoi(data, nullptr, 0);
47 if (manager.getNumOCCs() != occsPresent)
48 {
49 lg2::error("OCC presence mismatch - BMC: {BNUM}, OCC: {ONUM}", "BNUM",
50 manager.getNumOCCs(), "ONUM", occsPresent);
51 if (callBack)
52 {
53 callBack(occsPresent);
54 }
55 }
56 }
57
58 } // namespace occ
59 } // namespace open_power
60